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Finding the Fourth Proportional to 123,491.52, 185,232.96 and 52,368.39

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Solution

The fourth proportional to 123,491.52, 185,232.96 and 52,368.39 is: 78,550.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,491.52 : 185,232.96 = 52,368.39 : x
  2. Step 2: Convert to fraction form
    123,491.52/185,232.96 = 52,368.39/x
  3. Step 3: Cross multiply
    123,491.52x = 185,232.96 × 52,368.39
  4. Step 4: Simplify right side
    123,491.52x = 9,700,351,890.13
  5. Step 5: Solve for x
    x = 9,700,351,890.13/123,491.52
  6. Step 6: Final answer
    x = 78,550.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.